英文:
sshd error shows double slash in authorized_keys path
问题
当我添加另一个用户 bob 后，尝试连接时，客户端显示：
bob@1.2.3.4: Permission denied (publickey).
而服务器的日志显示：
sshd: Could not open user 'bob' authorized keys '/home/bob//.ssh/authorized_keys': Permission denied
那个双斜杠可能是问题所在。它是从哪里来的？
英文:
My server has an ssh user that works (so sshd works).
When I added another user bob, then tried to connect, the client shows:
bob@1.2.3.4: Permission denied (publickey).
And the server's logs show:
sshd: Could not open user 'bob' authorized keys '/home/bob//.ssh/authorized_keys': Permission denied
That double slash is probably the issue. Where is that coming from?
答案1
得分: 1
$ cat /etc/passwd | grep bob:
bob:.......:/home/bob/:/bin/bash
所以我执行了：
sudo usermod --home /home/bob bob
$ cat /etc/passwd | grep bob：
bob:.......:/home/bob:/bin/bash
注意：
Linux忽略路径中的双斜杠，所以虽然这个操作在服务器上“修复”了日志错误，但根本问题仍然存在。要解决这个问题，请参考接受的答案。
英文:
$ cat /etc/passwd | grep bob:
bob:.......:/home/bob/:/bin/bash
So I did:
sudo usermod --home /home/bob bob
$ cat /etc/passwd | grep bob:
bob:.......:/home/bob:/bin/bash
NOTE:
Linux ignores double slashes in paths, so although this "fixed" the log error on the server, the underlying issue remained. To fix that, see the accepted answer.
答案2
得分: 1
我理解的情况是与authorized_keys文件的路径有关！通常与.ssh目录的权限或用户的主目录有关。
.ssh目录的权限应该为700，而authorized_keys文件的权限应该为600。
所以首先检查它们：
ls -ld /home/bob/
ls -ld /home/bob/.ssh/
ls -l /home/bob/.ssh/authorized_keys
要修复这个问题，你可以这样做：
chmod 700 /home/bob/.ssh
chmod 600 /home/bob/.ssh/authorized_keys
如果权限设置正确，重新启动ssh服务并再次测试：
sudo systemctl restart sshd
还要检查authorized_keys必须位于以下路径：
/home/bob/.ssh/authorized_keys
祝你好运！
英文:
As I understand it shows that there is an issue with the path to the authorized_keys file!
usually it's related to the permissions of .ssh directory or the user's home directory.
the .ssh directory should have permissions of 700 and the authorized_keys file should have permissions of 600
so check them first :
ls -ld /home/bob/
ls -ld /home/bob/.ssh/
ls -l /home/bob/.ssh/authorized_keys
to fix that you can easily do like this :
chmod 700 /home/bob/.ssh
chmod 600 /home/bob/.ssh/authorized_keys
if the permissions are correct,restart ssh service and test it again
sudo systemctl restart sshd
also check the authorized_keys must be in this path :
/home/bob/.ssh/authorized_keys
good luck !
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